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Remote-PC-Switch

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Remote PC Switch

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# remote-pc-switch
Remote PC Switch

I am currently trying to realize the following project:

I have a server rack with a number of computers (gaming, work, ..). Each computer has two monitor outs (Displayport 1.4, 4K@144Hz) and a single peripheral out (USB-C 10Gbps).

Important bandwith parameters:
- Displayport: min. **1.4 4K@240Hz via DSC**, ideal: 2.1 4K@240Hz no compression capable
- USB-C: min. **5Gbps** / ideal 10Gbps

Now I want to make those computers available at various locations (2-3). Distance varies between 10 - 30+ meters.

~~There are already a number of fiber optic solutions out there to solve the distance issue (https://fibercommand.com, https://www.heyoptics.net/) and I could basically have one of those multi cables to each terminal location:~~

~~**MPO Fiber Connection**~~
<img width="1151" alt="image" src="https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/5a5c180c-fc97-4453-bf09-654362d0de5e">

**Both potential fibercommand and heyoptics solutions and especially customer support have proven "complicated". Will switch to a different route for now with single fiber cable solutions for DP and USB. Will update soon after cable compatibility tests.**

What is missing now is basically a switching unit in my server rack that allows me to say ComputerXYZ passthrough to TerminalXYZ.

Since are no 4K@144Hz units available I decided to built a switch myself.

This project will be periodically updated until completion!

**Updates**

**2024-06-21** - VERSION 1.0

My setup is now (semi) final. Installed everything in my rack and it is working!

Hardware Components used:
+ **Retractable 2U Tray** (Digitus, DN-19-TRAY-2-450-SW)
+ **ESP32** (Lilygo T-ETH-Lite + POE Shield)
+ 6x **DP2.1 Switch** (2x1, Bi-Directional)
+ 4x **USB-C Switch** (2x1, Bi-Directional)

3D Printables:
+ **[1.5U Case Rackmount Case for Digitus](https://makerworld.com/en/models/505784)**
+ **[Desk Mount for Control Display](https://makerworld.com/en/models/503075)**

ESPHome Scripts:
+ **PC Controller** (esphome/pc_control.yaml)
+ **Desk Controller** (esphome/desk_control.yaml)

**Device**

**Wireing**

**Switching at Terminals**

To switch between the PCs at the terminals I use another ESP32 running ESPHome and hooked up to Home Assistant.

![IMG_3739](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/35879aac-4d9c-4f20-83e1-6cab49310442)

---

**2024-04-22**

Some issues emerged in the testing setup especially trying to run full 4K 240Hz stable using fibre connections and a single switch (!):
![full-t](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/70afe063-4032-4e22-8224-01454dbb5753)

**2024-04-20**

Changed some components around, added Mini-DP support. Testing GIGABYTE AORUS FO32U2P (DP2.1 OLED!) monitor and trying to find a compatible fibre DP cable that works long distance with 4K@240Hz (15M):
![IMG_3097](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/ddf7a283-fd2a-41b6-9312-6b4dc10342ec)

**2024-04-03**

Wiring scheme and test setup complete. All assembly parts printed. Now to final testing:

![IMG_2968](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/e4984c09-5248-4d1c-a799-0e14be96d140)
<img width="1678" alt="Screenshot 2024-04-03 at 07 58 05" src="https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/93d60018-cd4a-4a78-ab48-1e2c54afae33">

**2024-03-03**

USB-C 2x1 switch testing finalized. Updated wiring for 4x PC inputs to 2x Terminal outputs:

![wiring](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/5d6eeed4-9dbc-4c59-a7c0-d52c93b4a293)

**2024-02-02**

Found a good way to internally connect both splitters without producing much cable-length-waste (flat ribbon extension cables):

**2024-02-01**

Just a quick update. 1U rack mount design is on-going and in current prototyping phase:

**2024-01-21**

Updated and simplified the ESP32 control scheme. Only 2 Optocouplers and 2 Controls PINs required now.

**2024-01-21**

Complete wireing finalized and optical equipment assembled:

**2024-01-18**

Extended the diagram to support "Matrix" capability. Before only one terminal could be used simoultaneously. Now both can be used at the same time (A -> B, B -> A or A -> A, B -> B).

**2024-01-16**

Hooked up DP2.1 switch to ESP32. Switching and read-out of current active port successful!

![IMG_2452](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/03c9a8f5-4703-4f7c-8fbb-572b3ba67629)
![IMG_2453](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/04b804be-d4b4-4ec2-a913-a52113f5b9a7)
![IMG_2456](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/7afe72db-d579-4003-bdd6-86fe7adf5c82)

**2024-01-13**

Disassembled a low cost DP2.1 (2x1) switch and established wireing diagram:

![IMG_2437](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/166a4d40-186a-4291-9b7a-3f8098a76c33)

**2024-01-12**

Purchased test components. Works with two DP2.1 2x1 switches in a row as intended:

![IMG_2423](https://github.com/pixelwave/Remote-PC-Switch/assets/19491804/e069e56e-ae02-4bf7-b1aa-4f58e68b3c98)

**2024-01-10**

Established initial schematic:

Remote-PC-Switch

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